Powerwall 3
What a Tesla Powerwall 3 costs in Texas
A 13.5 kWh home battery like Tesla Powerwall 3 averaged about $15,650 installed in 2026 (EnergySage). Powerwall 3 stores 13.5 kWh, delivers 11.5 kW continuously and has a built-in solar inverter, which can trim equipment cost when installed with new solar.
What changes the price
- How many units (whole-home backup may need two).
- Electrical work: panel upgrades, backup gateway, critical-loads panel.
- Installing with new solar (shared inverter) vs. adding to existing solar.
- Permits and utility approval.
Specs that matter
| Usable energy | 13.5 kWh |
| Continuous power | 11.5 kW |
| Chemistry | LFP (lithium iron phosphate) |
| Built-in solar inverter | Yes |
| Warranty | 10 years |
| Expandable | Up to 4 units (54 kWh) |
Own it, don’t rent it
No federal homeowner credit applies in 2026, so we price it straight and help you own it with cash or a solar loan — no escalator, and the battery stays with your home. Powerwall lease vs owning →
Frequently asked questions
How much is a Powerwall 3 installed in Texas?
A 13.5 kWh battery averaged about $15,650 installed in 2026; your price depends on units, electrical work and whether it goes in with new solar.
How many Powerwalls do I need?
One covers essentials for most homes; whole-home backup with central AC often needs two plus load management.
Is there a tax credit for Powerwall in 2026?
No federal homeowner credit for 2026 purchases.